How Does a Sundial Work?
There are several types of sundials and all use slightly different methods of time-telling. However, all sundials tell time according to the position of the sun. In general, most sundials consist of a rod (known as a “gnomen”) that casts a shadow on the flat surface of the dial, with lines on the dial that align with the shadow, one hour at a time. The shadow moves around the sundial much like hands move around a clock, although a sundial isn’t quite as exact.
Sundials in the Garden
While it’s possible to build your own sundial, most gardeners prefer to purchase a ready-made one. Sundials can be simple or elaborate, but sundials in the garden are generally made of bronze, brass, iron, stainless steel, or another sturdy, long-lasting material. Most are displayed on attached pedestals, but sundials can also be bolted onto large stones. When properly aligned, sundials can be functional time-telling objects. However, you can simply place use them as a unique accent in a flower bed or alongside a garden pathway or sidewalk. In a formal garden, a sundial can be implemented as a focal point surrounded by classic plants, like boxwood shrubs and roses, which creates an atmosphere of peaceful elegance. In a casual garden, sundials are a central object in a bed of petunias, geraniums, and other colorful annuals and perennials. Sundials can also be placed in a peaceful, shady garden spot, usually next to a garden bench where visitors can sit and relax while contemplating the steady passage of time. Some public gardens contain large, ground-level, human powered sundials. If a person stands in a designated spot, the person becomes the gnomen and the shadow indicates the time. This is among the most interesting sundial uses.
